Related Manuals for Vaisala HUMICAP HMT100
Summary of Contents for Vaisala HUMICAP HMT100
- Page 1 USER'S GUIDE ® Vaisala HUMICAP Humidity and Temperature Transmitter Series HMT100 M210701EN-D...
- Page 2 The contents are subject to change without prior notice. Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user. All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of...
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Page 3: Table Of Contents
CHAPTER 4 MAINTENANCE ................... 25 ® Replacing the HUMICAP Sensor ......... 25 Fixed Probe Model .............. 25 Remote Probe Model ............25 Removing and Fastening the Probe........26 Fixed Probe Model .............. 26 Remote Probe Model ............27 VAISALA ________________________________________________________________________ 3... - Page 4 HMI41 as a Terminal..........37 Troubleshooting..............39 Analog Output Tests ..............40 CHAPTER 5 TROUBLESHOOTING..................41 Error Mode................41 Current Output..............41 Voltage Output..............41 Technical Support ..............41 Return Instructions ..............42 Vaisala Service Centers ............43 CHAPTER 6 TECHNICAL DATA ..................45 Specifications .................45 Dimensions in mm (inches)...........49 4 ___________________________________________________________________ M210701EN-D...
- Page 5 Specifications ................46 Table 8 Accuracy of Dewpoint Temperature Measurement....46 Table 9 Operating Environment Specifications ........46 Table 10 Inputs and Outputs ..............47 Table 11 Mechanics Specifications ............47 Table 12 Options and Accessories............48 VAISALA ________________________________________________________________________ 5...
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Page 6: Chapter 1 General Information
User's Guide ______________________________________________________________________ CHAPTER 1 GENERAL INFORMATION This chapter provides general notes for the manual and the product. About This Manual This manual provides information for installing, operating, and maintaining the Humidity and Temperature Transmitter HMT100. Version Information Table 1 Manual Revisions Manual Code Description... -
Page 7: General Safety Considerations
NOTE Note highlights important information on using the product. Feedback Vaisala Customer Documentation Team welcomes your comments and suggestions on the quality and usefulness of this publication. If you find errors or have other suggestions for improvement, please indicate the chapter, section, and page number. -
Page 8: Recycling
User's Guide ______________________________________________________________________ ESD for their intended use. However, it is possible to damage the product by delivering electrostatic discharges when touching, removing, or inserting any objects inside the equipment housing. To make sure you are not delivering high static voltages yourself: - Handle ESD sensitive components on a properly grounded and protected ESD workbench. -
Page 9: Trademarks
Vaisala Oyj. License Agreement All rights to any software are held by Vaisala or third parties. The customer is allowed to use the software only to the extent that is provided by the applicable supply contract or Software License Agreement. - Page 10 User's Guide ______________________________________________________________________ This page intentionally left blank. 10 __________________________________________________________________ M210701EN-D...
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Page 11: Chapter 2 Product Overview
Chapter 2 __________________________________________________________ Product Overview CHAPTER 2 PRODUCT OVERVIEW Thank you for choosing the Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT100. This chapter introduces you to its features. The Vaisala range of relative humidity measurement instruments covers all the applications from ventilation to process control in demanding explosive areas. -
Page 12: Fixed And Remote Probe Models
User's Guide ______________________________________________________________________ Fixed and Remote Probe Models The HMT100 is available either with a fixed probe (0.1 m probe cable) or a remote probe with different cable lengths (3/5/10 m cable lengths. A 10 m extension cable is also available; see Table 12 Options and Accessories on page 48). -
Page 13: Figure 1 Hmt100 Components
Chapter 2 __________________________________________________________ Product Overview 0603-048 Figure 1 HMT100 Components The following numbers refer to Figure 1 above: Transmitter housing; transmitter cover Probe cover Probe cable HMP100 probe Filter See Table 12 on page 48 for spare part numbers. VAISALA _______________________________________________________________________ 13... - Page 14 User's Guide ______________________________________________________________________ This page intentionally left blank. 14 __________________________________________________________________ M210701EN-D...
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Page 15: Chapter 3 Installation
Attach the wall assembly plate to the wall with two screws. Press the transmitter down so that it slides along the rails of the mounting plate. 0505-171 Figure 2 Plastic Wall Assembly Plate (Spare Part No. GM45160) VAISALA _______________________________________________________________________ 15... -
Page 16: With Optional Aluminum Wall Installation Plate
User's Guide ______________________________________________________________________ With Optional Aluminum Wall Installation Plate Attach the aluminum plate to the wall. Attach the plastic wall assembly plate (provided) to the aluminum plate with two screws. Press the transmitter down so that it slides along the rails of the wall assembly plate. -
Page 17: Installation With Rain Shield
Chapter 3 _______________________________________________________________ Installation Installation with Rain Shield The installation kit with rain shield includes a metal mounting plate and a rain shield for the transmitter. Vaisala order code: 215109. 0505-340 Figure 4 Installation with Rain Shield (Spare Part No. 215109) Fasten the metal mounting plate to the wall or pole with screws (see Figure 4 above). -
Page 18: Installation With Radiation Shield
DTR502 and a plastic installation support for the humidity probe. Vaisala order code: DTR502B. If you already have the DTR502 shield and need only the installation support for the probe, it is available with Vaisala order code 210623. Fasten the probe to the installation support with two cable ties (items 3 and 4 in Figure 5 below). -
Page 19: Duct Installation Kit
Chapter 3 _______________________________________________________________ Installation Duct Installation Kit The duct installation kit includes a plastic pipe with a flange (Vaisala order code: 215619). To install the HMP100 probe with the duct installation kit, drill a hole to the duct wall, assemble the probe to the duct installation kit, slide the probe head through the hole, and attach the flange to the duct wall with four screws. -
Page 20: Probe Assembly With Duct Installation Kit
User's Guide ______________________________________________________________________ Probe Assembly with Duct Installation Kit 0505-177 Figure 7 Assembly of the Humidity Probe with the Duct Installation Kit The following numbers refer to Figure 7 above: HMP100 Duct installation kit Probe cable Slide the probe cable through the duct installation kit plastic pipe. Attach the probe cable to the HMP100 Humidity Probe. -
Page 21: Drilling Instructions For Duct Installation Kit
Drill holes for the duct installation kit mounting screws around the hole in a square arrangement, 42 mm apart from each other. Use a 3.2-mm drill bit to drill the holes for the mounting screws (four ST4.2×16-C-Z DIN 7981 screws). VAISALA _______________________________________________________________________ 21... -
Page 22: Connections
User's Guide ______________________________________________________________________ Connections 0505-179 Figure 9 HMT100 Connection Board The following numbers refer to Figure 9 above: Service port Adjustment buttons Jumpers for selecting voltage or current output (not user adjustable) Optional LCD Field wire terminals Connector for HMP100 Humidity Probe Display backlight jumper (only in voltage output version);... -
Page 23: Figure 10 (1) Isolated Current-Loop Wiring, (2) Voltage Output Wiring
10 above. If you have at order time selected a two-wire transmitter, make the wiring according to item 1 in Figure 10. If you have selected a three- wire transmitter, make the wiring according to item 2 in Figure 10. VAISALA _______________________________________________________________________ 23... - Page 24 User's Guide ______________________________________________________________________ This page intentionally left blank. 24 __________________________________________________________________ M210701EN-D...
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Page 25: Chapter 4 Maintenance
Remove the filter (plastic grid or sintered stainless steel). Remove the damaged sensor and insert a new one. Recalibrate the transmitter. Replace a dirty filter to ensure a maximum lifetime and a fast response for the sensor. Do not attempt to clean the filter. VAISALA _______________________________________________________________________ 25... -
Page 26: Removing And Fastening The Probe
User's Guide ______________________________________________________________________ Removing and Fastening the Probe Fixed Probe Model Remove and replace the probe as follows: Loosen the plastic probe cover by carefully turning it counter clockwise. Remove the probe cap and the O-ring. Remove the probe cover. The probe is now exposed. Unscrew the small sleeve that is securing the probe in place and pull out the probe. -
Page 27: Remote Probe Model
Replace the probe and screw the small sleeve back on, securing the probe tightly in place. 0506-006 Figure 12 Removing the Humidity Probe (Remote Probe Model) The following numbers refer to Figure 12 above: Probe cable Sleeve securing the probe to the cable HMP100 probe VAISALA _______________________________________________________________________ 27... -
Page 28: Calibration And Adjustment
In case the probe is outside its adjustment/trim range due to, for example, chemical exposure, the calibration cannot be completed. In this case, it is recommended that you change the probe or contact Vaisala Services. Relative Humidity Adjustment Using Push Buttons... -
Page 29: Adjustment With Hm70
You can check and adjust the HMT100 relative humidity measurement with the HM70 Hand-Held Humidity and Temperature meter. A HM70- connection cable is needed. Vaisala order code: 211339. There are four types of adjustments available: field checking and adjustment using a calibrated reference probe, one-point adjustment using a calibrator, two-point adjustment using a calibrator, and LiCl- NaCl adjustment. -
Page 30: Field Checking And Adjustment Using A Calibrated Reference Probe
User's Guide ______________________________________________________________________ SERVICE PORT Connect the 211339 HM70-connection cable to the connector on the HMT100 motherboard (see Figure 9 on page 22). Connect the other end of the connection cable to either of the HM70's connector ports located on the bottom of the indicator (see Figure 14 above). -
Page 31: One-Point Adjustment Using A Calibrator
Enter the correct reference value with the arrow buttons. Press Confirm the adjustment by pressing BACK EXIT The adjustment is done. Press to return to the basic display. Turn off the MI70 and detach the connection cable. VAISALA _______________________________________________________________________ 31... -
Page 32: Two-Point Adjustment Using A Calibrator
User's Guide ______________________________________________________________________ Two-Point Adjustment Using a Calibrator Note that the difference between the two reference humidities must be at least 50 %. MI70 indicator is used now only as a terminal for visualizing and setting the transmitter's RH reading. Follow steps 1 to 7 on page 30 and continue as follows: Remove the filter from the transmitter's probe and insert the probe head into the lower humidity reference condition. -
Page 33: Temperature Field Check And Adjustment By Using A Calibrated Reference Probe
The available reserve for T adjustment of HMT100 depends on the initial temperature calibration of the unit. BACK EXIT Adjustment is done. Press to return to the basic display. Switch off the MI70 and detach the calibration cable from MI70 and from the transmitter. VAISALA _______________________________________________________________________ 33... -
Page 34: Adjustment With Hmi41
You can check and adjust the HMT100 relative humidity measurement with the HMI41 indicator and HMP41/45/46 probes. A HMI41- connection cable is needed. Vaisala order code: 25917ZZ. There are three adjustment modes available: offset (dry point), gain (wet point), and two-point adjustment. All of these can be performed using the... -
Page 35: Connections And Selecting The Calibrator Function
These setting are stored in the HMI41 memory; when the HMI41 is turned on again, it will automatically wake up as a calibrator for digital transmitters with these serial line settings. After making these settings, continue with the adjustment and follow the directions of the chosen adjustment method. VAISALA _______________________________________________________________________ 35... -
Page 36: Offset And Gain Adjustments
User's Guide ______________________________________________________________________ Offset and Gain Adjustments Offset and gain adjustments are performed in the same way (they differ only in internal calculations), so this section is valid for both methods. SERVICE Connect the 25917ZZ HMI41-connection cable to the PORT connector on the HMT100 motherboard (see Figure 9 on page 22). -
Page 37: Hmi41 As A Terminal
The HMI41 can also be used for visualizing and setting the transmitter's RH reading manually. A display similar to the one below should be visible: The numbers on the first line indicate the transmitter reading, and the numbers on the second line indicate the HMI41 probe reading. VAISALA _______________________________________________________________________ 37... - Page 38 User's Guide ______________________________________________________________________ MODE Let the readings stabilize and press . The following display appears: The HMI41 now works only as a terminal for setting the humidity reading. The numbers on the first line are blinking, and the numbers on the second line indicate the transmitter reading. You can now set the blinking reading to the correct value (for example, the equilibrium RH of a salt solution) with the buttons ▲...
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Page 39: Troubleshooting
Check the connection of not properly connected the calibration cable. or the serial line Check that the serial line settings of the HMI41 settings in the HMI41 and the transmitter do memory correspond to not correspond. those of the transmitter. VAISALA _______________________________________________________________________ 39... -
Page 40: Analog Output Tests
User's Guide ______________________________________________________________________ Analog Output Tests HMT100 has a built-in software function for testing the analog outputs. To test the outputs, do the following: Make sure the transmitter is not in adjustment mode. Press the 75 % adjustment button (see Figure 13 on page 28). This sets the output current/voltage level to the middle point of the selected output range (specified when ordering the product). -
Page 41: Chapter 5 Troubleshooting
The transmitter cannot indicate a faulty RH probe. Voltage Output Voltage output version has no error mode indication. Technical Support For technical questions, contact the Vaisala technical support: E-mail helpdesk@vaisala.com +358 9 8949 2790 VAISALA _______________________________________________________________________ 41... -
Page 42: Return Instructions
Include the information specified in step 2 in the box with the faulty product. Include a detailed return address as well. Ship the box to the address specified by your Vaisala contact. 42 __________________________________________________________________ M210701EN-D... -
Page 43: Vaisala Service Centers
Chapter 5 ___________________________________________________________ Troubleshooting Vaisala Service Centers Vaisala Service Centers perform calibrations and adjustments as well as repair and spare part services. See contact information below. Vaisala Service Centers also offer accredited calibrations, maintenance contracts, and a calibration reminder program. Do not hesitate to contact them to get further information. - Page 44 User's Guide ______________________________________________________________________ This page intentionally left blank. 44 __________________________________________________________________ M210701EN-D...
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Page 45: Chapter 6 Technical Data
Temperature Measurement Specifications Property Description / Value Measurement range -40 ... +80 °C (-40 ... 176 °F) Accuracy at +20 °C (+68 °F) ±0.2 °C (See Figure 18 on page 46) Pt1000 IEC 751 ⅓ class B Temperature sensor VAISALA _______________________________________________________________________ 45... -
Page 46: Figure 18 Accuracy Of Temperature Measurement
User's Guide ______________________________________________________________________ 0505-247 Figure 18 Accuracy of Temperature Measurement Table 7 Dewpoint Temperature (Calculated) Measurement Specifications Property Description / Value Measuring range -20 ... +80 °C (+4 ... 176 °F) Accuracy see Table 8 below Table 8 Accuracy of Dewpoint Temperature Measurement Relative humidity Temp. -
Page 47: Table 10 Inputs And Outputs
Sintered stainless steel filter HM46670SP Connections screw terminals 0.5 ... 1.5 mm² Probe cable lengths 3 m, 5 m, 10 m 10 m extension available Display (optional) one line with changing (at 6 s intervals) or fixed variables VAISALA _______________________________________________________________________ 47... -
Page 48: Table 12 Options And Accessories
User's Guide ______________________________________________________________________ Table 12 Options and Accessories Description Order Code Sensor head HMP100 HMP100 Humidity sensor Humicap180 T-sensor PT1000 18921 Filter plastic grid + membrane DRW010525 Sintered stainless steel filter HM46670SP Extension cable 10 m DRW220095 Probe cable 0.1 m HMP50Z010SP Probe cable 3 m HMP50Z300SP... -
Page 49: Dimensions In Mm (Inches)
Chapter 6 ____________________________________________________________ Technical Data Dimensions in mm (inches) 0505-188 Figure 19 Dimensions HMT100 Fixed Probe Model VAISALA _______________________________________________________________________ 49... -
Page 50: Figure 20 Dimensions Hmt100 Remote Probe Model
User's Guide ______________________________________________________________________ 119 4.69 33.5 1.32 Ø 12 0.47 0505-189 Figure 20 Dimensions HMT100 Remote Probe Model 50 __________________________________________________________________ M210701EN-D... - Page 51 ____________________________________________________________________ Technical Data VAISALA _______________________________________________________________________ 51...
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